Compaq VAX 7000 Guía de instalación descargar pdf (Pagina 34)

The Pocket Service Guide explains some console commands for testing. For more detail see

Console Reference Manual. For LEDs and selftest failures see Advanced Troubleshooting

Manual.

Testing under the Operating System can be done with UETP for VAX systems and VET for

DEC systems. See Section 14.2.4, DEC Veriﬁer and Exerciser Tool (DEC VET) .

12 Troubleshooting Tips

If you replace a CPU, in a multi-CPU system, use the LFU not the console UPDATE com-

mand to update the console ﬁrmware. See Section 7.

If you replace an H7263 regulator, don’t forget the 5 delay upon inserting the new one. See

Installation Card.

If you’re planning a console upgrade make sure a spare CPU is available nearby. Console

upgrades can go wrong and most customers don’t like having to wait for a replacement from

Nijmegen.

Each VAX CPU has a System Indentiﬁcation Register (SID), which contains CPU type and

ucode information. When you replace a CPU, or upgrade the ucode, the value of this register

will change. This is, of course, supposed to happen, but beware of customers with "SID

locked" applications. (See Datadoc - VMS section for description of SID).

If you replace or upgrade a CPU in a DEC/VAX 10000 system, make sure environmental

variable "system_variant" is set to 1 afterwards.

If you replace or install a CIXCD-AC in a DEC/VAX 7000/10000 system, remember that it

may come with the "wrong sort" of ucode installed. IE: It has AXP ucode and you put it in

a VAX, or vice versa. In this case the console will not recognise the option and ">>> show

device" will display it as "unknown0". You can still load the correct ucode from the LFU,

using the following command.

Function? update unknown0

You will be asked for the device name, type CIXCD

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Compaq VAX 7000 Guía de instalación Pagina 34